Classe « Axes »

Méthode matplotlib.axes.Axes.arrow

Signature de la méthode arrow

def arrow(self, x, y, dx, dy, **kwargs) 

Description

arrow.__doc__

Add an arrow to the Axes.

This draws an arrow from ``(x, y)`` to ``(x+dx, y+dy)``.

Parameters
----------
x, y : float
    The x and y coordinates of the arrow base.

dx, dy : float
    The length of the arrow along x and y direction.

width : float, default: 0.001
    Width of full arrow tail.

length_includes_head : bool, default: False
    True if head is to be counted in calculating the length.

head_width : float or None, default: 3*width
    Total width of the full arrow head.

head_length : float or None, default: 1.5*head_width
    Length of arrow head.

shape : {'full', 'left', 'right'}, default: 'full'
    Draw the left-half, right-half, or full arrow.

overhang : float, default: 0
    Fraction that the arrow is swept back (0 overhang means
    triangular shape). Can be negative or greater than one.

head_starts_at_zero : bool, default: False
    If True, the head starts being drawn at coordinate 0
    instead of ending at coordinate 0.

**kwargs
    `.Patch` properties:

    Properties:
    agg_filter: a filter function, which takes a (m, n, 3) float array and a dpi value, and returns a (m, n, 3) array
    alpha: scalar or None
    animated: bool
    antialiased or aa: unknown
    capstyle: `.CapStyle` or {'butt', 'projecting', 'round'}
    clip_box: `.Bbox`
    clip_on: bool
    clip_path: Patch or (Path, Transform) or None
    color: color
    contains: unknown
    edgecolor or ec: color or None or 'auto'
    facecolor or fc: color or None
    figure: `.Figure`
    fill: bool
    gid: str
    hatch: {'/', '\\', '|', '-', '+', 'x', 'o', 'O', '.', '*'}
    in_layout: bool
    joinstyle: `.JoinStyle` or {'miter', 'round', 'bevel'}
    label: object
    linestyle or ls: {'-', '--', '-.', ':', '', (offset, on-off-seq), ...}
    linewidth or lw: float or None
    path_effects: `.AbstractPathEffect`
    picker: None or bool or float or callable
    rasterized: bool
    sketch_params: (scale: float, length: float, randomness: float)
    snap: bool or None
    transform: `.Transform`
    url: str
    visible: bool
    zorder: float

Returns
-------
`.FancyArrow`
    The created `.FancyArrow` object.

Notes
-----
The resulting arrow is affected by the Axes aspect ratio and limits.
This may produce an arrow whose head is not square with its stem. To
create an arrow whose head is square with its stem,
use :meth:`annotate` for example:

>>> ax.annotate("", xy=(0.5, 0.5), xytext=(0, 0),
...             arrowprops=dict(arrowstyle="->"))